Mail Server Customization

Hello Freelancer Guys, I need a person who have good experience in open source technology, know windows concept very well, mail server setup & customization. This job is not for a day or for a week so please bid only that person who will work continue one month with my organization. Now, Come to the task list. Project Description :- we are working on sogo mail server. Its open source groupware. Presently we are working on test environment but lack of time we need more person on this project. The installation & configuration is already done. The work which remains is to migrate/integrate sogo exchange server with Microsoft exchange server so the Microsoft exchange server user(its password), mails and other plugin comes automatically in sogo exchange server. Second work is to create logon domain (external domain) in ADC for each user (Note :- if you don't know what is logon domain then don't bid). This process will not done manually. Let me explain you in details. We want that when admin add new user or previous user for sogo mail server then that user will automatically create in windows. ADC (Active Directory client) is connected with Samba server and for authenticate purpose we use openldap and for database we use PostgreSQL. So user can send and received mail from that Machine. In ADC machine we set outlook or Thunderbird but in other side we used web interface for accessing mail server. Third work is to create GUI interface for admin. Right now we are using iredadmin for creating user and domain but when logon work complete then admin able to create user in different - different logon , delete and perform other functionality from GUI interface. I don't care if you customize iredadmin or used any other software for this. The main thing of this project is that we don't have much time. So only hard worker and motivational person apply. We have only 7 days for test and then we move on live environment. And i will pay extra for live environment. I hope, my above information will cleared your all doubt. Don't worry about payment. I will provide you more as your requirement but if work quality is good and complete within time limit. So, I hope.. i get right person from here. You can also contact me through skype. No advance.. payment will be done after each step. We can discuss more about this thing. The Administrator removed this message due to contact details which breaches our Terms and Conditions. Thanks